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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
hydrolysis
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: OECD guideline used

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1999

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 111 (Hydrolysis as a Function of pH)
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
4-aminotoluene-3-sulphonic acid
EC Number:
201-831-3
EC Name:
4-aminotoluene-3-sulphonic acid
Cas Number:
88-44-8
Molecular formula:
C7H9NO3S
IUPAC Name:
2-amino-5-methylbenzene-1-sulfonic acid
Details on test material:
Tokyo Kasei Kogyo Co., Ltd.: purity 99.9%

Results and discussion

Transformation products:
no
Dissipation DT50 of parent compoundopen allclose all
pH:
4
Temp.:
50 °C
DT50:
> 5 d
pH:
7
Temp.:
50 °C
DT50:
> 5 d
pH:
9
Temp.:
50 °C
DT50:
> 5 d

Applicant's summary and conclusion

Conclusions:
The substance is stable to hydrolysis.
Executive summary:

According to above pre-study test, this substance has no activity of hydrolysis and stable at pH 4, 7, and 9.